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3. Optionally, use the other Ethernet port to daisy-chain to another Ethernet device.
4. If you did not connect both Ethernet ports, make sure that the unused port is covered with a
connector cap to keep dust and liquids from getting in the connector.
Note: Ethernet ports must have an approved cable or protective cover attached to the connector to guarantee
IP67 integrity.
2.2.2
MD 248i-12-8K/L4-2R2K - Connecting to the Network
The IO-Link Master provides two Fast Ethernet (10/100BASE-TX) standard RJ45 connectors.
You can use this procedure to connect the IO-Link Master to the network or IO controller.
1. Securely connect one end of the RJ45 Ethernet cable to either Ethernet port.
2. Connect the other end to the network or an IO controller.
3. Optionally, use the other Ethernet port to daisy-chain to another Ethernet device.
Note: If you do not connect the IO-Link Master to an IO controller, an IO controller needs to be connected to the
network for PROFINET IO configuration.
2.3
Connecting the Power
Use the appropriate information for your IO-Link Master model:
2.3.1
MD 748i-11-42/L5-2222 - Connecting the Power
The MD 748i-11-42/L5-2222 provides dual M12 (A-coded) power connectors.
Note: Power connectors must have an approved cable or protective cover attached to the port guarantee to IP67
compliance.
Pin
1
L+
2
L2+
3
L-
4
L2-
5
Not connected
The MD 748i-11-42/L5-2222 requires a UL LPS listed power supply with an output rating of 24VDC.
Leuze electronic
Pin
Signal
1
Tx+
2
Rx+
3
Tx-
4
Rx-
Output -
Input - Male
Female
L+
L2+
L-
L2-
Not connected
MD 748i / MD 248i
2 Hardware Installation
10
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